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