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