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