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