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