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