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