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