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