# example data
library(igraph)
links <- cbind.data.frame(from = rep("A", 6),
to = LETTERS[1:6],
weight = rep((1:3), each =2))
nodes <- nodes <- cbind.data.frame(id = LETTERS[1:6],
feature = rep((1:3), each =2))
net <- graph_from_data_frame(d = links, vertices = nodes, directed = T)
V(net)$color <- V(net)$feature
plot(net, vertex.size=30, edge.arrow.size = 0)
This is what I get:

What I want is to cluster the same colored nodes together, something similar as shown in the figure below. How can I do it?

