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