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