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