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