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