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