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