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