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