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