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