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