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