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