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