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