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