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