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