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