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