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