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