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