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