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