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