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