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