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