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