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