One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(6,8)(10,13)(14,15)(17,18)(19,23)(20,24)(21,29)(22,26)(25,30)(27,32)(28,31) involution — undirected(1,2,4,5)(3,6,7,8)(17,19,22,20)(18,23,26,24)(21,27,30,28)(25,31,29,32)(9,10,12,13)(11,15,16,14)(17,18,22,26)(19,24,20,23)(21,25,30,29)(27,32,28,31)(9,11,12,16)(10,14,13,15)(17,20,22,19)(18,24,26,23)(21,28,30,27)(25,32,29,31)(1,3,4,7)(2,6,5,8)(17,18)(19,23)(20,24)(21,25)(22,26)(27,31)(28,32)(29,30)(17,21)(18,25)(19,27)(20,28)(22,30)(23,31)(24,32)(26,29) 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.