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