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)(13,14)(15,24)(16,28)(17,32)(18,23)(19,22)(20,26)(21,30)(25,41)(27,37)(29,44)(31,40)(33,36)(34,39)(35,43)(38,42)(13,15,17,26,19,27,18,33)(14,20,23,24,22,36,32,37)(16,29,30,25,31,42,34,43)(21,38,28,41,39,44,40,35)(2,4)(6,9)(10,11)(13,16,17,30,19,31,18,34)(14,21,23,28,22,39,32,40)(15,25,26,42,27,43,33,29)(20,35,24,38,36,41,37,44)(5,7,8,12)(6,10,9,11)(14,22)(20,36)(21,39)(23,32)(24,37)(28,40)(35,41)(38,44)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.