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