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