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