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