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