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