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