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