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