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