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