One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,9)(3,10,12,16)(4,13,8,5)(7,14,15,11)(17,18,22,26)(19,27,29,31)(20,25,21,24)(23,28,32,30)(1,3,6,12)(2,7,9,15)(4,10,8,16)(5,14,13,11)(19,28)(20,21)(23,31)(24,25)(27,32)(29,30)(1,4,5,2,6,8,13,9)(3,10,11,15,12,16,14,7)(17,19)(18,23)(20,28)(21,30)(22,29)(24,31)(25,27)(26,32)(19,29)(23,32)(27,31)(28,30) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.