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