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