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