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