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