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