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