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