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