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