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