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)(17,18)(19,22)(20,21)(23,24) involution — undirected(9,11,14,12)(10,15,13,16)(17,19,23,21)(18,20,24,22)(5,6)(7,8)(11,12)(15,16)(17,20,23,22)(18,19,24,21)(1,2,3,4)(9,12,14,11)(10,15,13,16)(17,21,23,19)(18,20,24,22)(9,13,14,10)(11,15,12,16)(17,22,23,20)(18,19,24,21)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.