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