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