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