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