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