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