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