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)(17,32)(18,22)(19,23)(21,30)(24,40)(25,36)(26,37)(28,34)(29,42)(31,39)(33,35)(38,41)(43,44)(1,3,4,2)(5,7,9,8)(6,10,12,11)(13,15,19,26)(14,20,23,37)(16,28,29,43)(17,25,18,33)(21,38,39,40)(22,35,32,36)(24,30,41,31)(27,34,42,44)(5,7,9,8)(6,11,12,10)(13,16)(14,21,23,39)(15,24,26,41)(17,30)(18,31)(19,29)(20,34)(22,27,32,42)(25,28,33,43)(35,40)(36,38)(37,44)(5,8,9,7)(6,11,12,10)(16,29)(21,39)(24,41)(27,42)(28,43)(30,31)(34,44)(38,40)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.