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