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