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