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