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