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