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