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