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