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