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