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