One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,3,4)(5,6)(7,10)(8,9)(11,12)(6,9)(10,12)(13,14,18,22)(15,23,26,42)(16,27,31,41)(17,32,29,21)(19,34,36,24)(20,37,39,30)(25,43,33,38)(28,40,44,35)(2,4)(5,7)(6,10)(8,11)(9,12)(13,15,18,26)(14,19,22,36)(16,28,31,44)(17,33,29,25)(20,38,39,43)(21,40,32,35)(23,41,42,27)(24,37,34,30)(7,11)(10,12) involution — undirectedA 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.