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