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