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