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