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