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)(15,18)(16,21)(17,22)(19,23)(20,26)(24,27)(25,28)(29,30)(31,37)(32,35)(33,36)(34,39)(38,43)(40,42)(41,44)(6,9)(10,12)(14,15)(16,23)(20,22)(24,25)(29,30,33,36)(31,34,39,37)(32,35,41,44)(38,42,40,43)(5,6,8,9)(7,10,11,12)(13,15,18,14)(16,21,23,19)(17,22,26,20)(24,28,25,27)(29,30)(31,34)(32,35)(33,36)(37,39)(38,42)(40,43)(41,44)(1,2)(3,4)(5,7,8,11)(6,10,9,12)(13,16)(14,19)(15,21)(17,25)(18,23)(20,28)(22,27)(24,26)(29,31)(30,34)(32,40)(33,39)(35,43)(36,37)(38,41)(42,44)(13,17,18,26)(14,20,15,22)(16,24,23,25)(19,27,21,28)(29,32,33,41)(30,35,36,44)(31,38,39,40)(34,42,37,43)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.