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