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