I have the following graph (source):
I then do: Layout | Edge routing | Orthogonal Bus-style and select as Bus membership: defined by color.
This is what I get (source):
with the strange edge on the bottom right going downward. From this, I can go back to the original layout with: Layout | Edge routing | Organic.
I am using yEd 3.9.2. And BTW, I *really* like it :-)