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