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