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