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