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