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)(16,31,33,22)(17,34,20,23)(18,37,32,24)(27,39,36,44)(28,40,38,42)(29,41,35,43)(5,7)(6,9)(8,12)(10,11)(13,15,19,30)(14,21,25,26)(16,32,33,18)(17,28,20,38)(22,24,31,37)(23,40,34,42)(27,35,36,29)(39,41,44,43)(2,4)(13,16,17,35,19,33,20,29)(14,22,34,41,25,31,23,43)(15,27,38,18,30,36,28,32)(21,39,40,37,26,44,42,24)(6,10)(9,11)(13,17,19,20)(14,23,25,34)(15,28,30,38)(16,29,33,35)(18,36,32,27)(21,40,26,42)(22,41,31,43)(24,44,37,39)(7,12)(9,11)(13,18,20,27,19,32,17,36)(14,24,23,44,25,37,34,39)(15,29,28,33,30,35,38,16)(21,41,42,22,26,43,40,31)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.