Survey
I put together a whole bunch of pointers and resources for you to sort through. Grab them from here:
https://keithandrews.com/xfer/g2/
First task: figure out if category vis and set vis are the same or different (or how they are related).
The SetViz survey paper by Bilal Alsallakh at EuroVis 2014 is a really good starting point, although many of the tools/systems may be dead now.
The visual browser at setviz.net is dead, but I found one here:
https://gallery.keshif.me/setvis
which seems to use the same dataset.