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