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