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