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