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