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)(11,15,16,23)(12,20,21,19)(13,22,24,17)(1,3,5,4)(2,6,8,7)(9,11)(10,15)(12,17)(13,20)(14,16)(18,23)(19,24)(21,22)(9,12)(10,16)(11,18)(13,23)(14,21)(15,24)(17,19)(20,22) involution — undirected(1,3,5,4)(2,7,8,6)(9,11,14,16)(10,12,18,21)(13,20,24,19)(15,17,23,22)(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.