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