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