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