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