I used autochrome[0] for Clojure code to do this. (I also made some improvements to show added/removed comments, top-level form moves, and within-string/within-comment edits the way GitHub does.)

At first I didn't like the color scheme and replaced it with something prettier, but then I discovered it's actually nice to have it kinda ugly, makes it easier to detect the diffs.

[0] https://fazzone.github.io/autochrome.html