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