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