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