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