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