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