How can I change the touch offset of a sprite in SpriteKit?

When I touch the player mallet (Air Hockey), I want to make it so the mallet moves slightly above the touch. This way the mallet will be more visible in the game. I have found some solutions but am having a hard time implementing properly in my function.

Here is a sample of my touchesMoved() function:

override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?)
{
    bottomTouchIsActive = true
    var releventTouch:UITouch!
    //convert set to known type
    let touchSet = touches

    //get array of touches so we can loop through them
    let orderedTouches = Array(touchSet)


    for touch in orderedTouches
    {
        //if we've not yet found a relevent touch
        if releventTouch == nil
        {
            //look for a touch that is in the activeArea (Avoid touches by opponent)
            if activeArea.contains(touch.location(in: parent!))
            {
                isUserInteractionEnabled = true
                releventTouch = touch
            }
            else
            {
                releventTouch = nil
            }
        }
    }

    if (releventTouch != nil)
    {
        //get touch position and relocate player
        let location = releventTouch!.location(in: parent!)
        position = location

        //find old location and use pythagoras to determine length between both points
        let oldLocation = releventTouch!.previousLocation(in: parent!)
        let xOffset = location.x - oldLocation.x
        let yOffset = location.y - oldLocation.y
        let vectorLength = sqrt(xOffset * xOffset + yOffset * yOffset)

        //get eleapsed and use to calculate speed6A
        if  lastTouchTimeStamp != nil
        {
            let seconds = releventTouch.timestamp - lastTouchTimeStamp!
            let velocity = 0.01 * Double(vectorLength) / seconds

            //to calculate the vector, the velcity needs to be converted to a CGFloat
            let velocityCGFloat = CGFloat(velocity)

            //calculate the impulse
            let directionVector = CGVector(dx: velocityCGFloat * xOffset / vectorLength, dy: velocityCGFloat * yOffset / vectorLength)

            //pass the vector to the scene (so it can apply an impulse to the puck)
            delegate?.bottomForce(directionVector, fromBottomPlayer: self)
            delegate?.bottomTouchIsActive(bottomTouchIsActive, fromBottomPlayer: self)
        }
        //update latest touch time for next calculation
        lastTouchTimeStamp = releventTouch.timestamp
    }
}