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