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