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