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