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