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