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