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