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)(16,18)(17,20)(19,23)(22,27)(24,25)(26,28)(29,30,34,37)(31,35,32,38)(33,36,41,43)(39,42,40,44)(6,9)(10,12)(14,16)(19,21)(20,24)(26,27)(29,31,34,32)(30,35,37,38)(33,39,41,40)(36,42,43,44)(5,6)(7,10)(8,9)(11,12)(13,15)(14,19)(16,21)(17,22)(18,23)(20,26)(24,27)(25,28)(29,32,34,31)(30,35,37,38)(33,40,41,39)(36,42,43,44)(1,2)(3,4)(13,16,18,14)(15,21,23,19)(17,20,25,24)(22,26,28,27)(29,30)(31,38)(32,35)(33,36)(34,37)(39,44)(40,42)(41,43)(5,7)(6,10)(8,11)(9,12)(13,17,18,25)(14,20,16,24)(15,22,23,28)(19,26,21,27)(29,33,34,41)(30,36,37,43)(31,39,32,40)(35,42,38,44)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.