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)(19,24)(20,23)(21,25)(22,27)(26,30)(28,31)(29,32)(2,5)(6,8)(9,11,12,16)(10,13,14,15)(1,2,4,5)(3,6,7,8)(17,19)(18,22)(20,26)(21,27)(23,29)(24,25)(28,32)(30,31)(1,3,4,7)(2,6,5,8)(17,20,21,28)(18,23,25,31)(19,26,27,32)(22,29,24,30)(17,19)(18,24)(20,26)(21,27)(22,25)(23,30)(28,32)(29,31) involution — undirected(17,18)(19,22)(20,23)(21,25)(24,27)(26,29)(28,31)(30,32) 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.