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