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