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