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