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