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