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