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