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