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)(14,18)(15,21)(16,24)(26,28)(30,31)(32,39)(33,41)(42,43)(14,18)(19,22)(20,25)(26,28)(29,30,34,31)(32,35,39,37)(33,38,41,36)(40,43,44,42)(6,7)(10,11)(13,14,17,18)(15,22,21,19)(16,20,24,25)(23,28,27,26)(29,31,34,30)(32,37,39,35)(33,38,41,36)(40,43,44,42)(1,2)(3,4)(5,7,9,6)(8,11,12,10)(13,15)(14,19)(16,23)(17,21)(18,22)(20,26)(24,27)(25,28)(29,32)(30,35)(31,37)(33,40)(34,39)(36,42)(38,43)(41,44)(5,8,9,12)(6,10,7,11)(13,16,17,24)(14,20,18,25)(15,23,21,27)(19,26,22,28)(29,33)(30,36)(31,38)(32,40)(34,41)(35,42)(37,43)(39,44)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.