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