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