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)(15,23,29,21)(16,30,33,40)(17,35,28,37)(18,26,20,24)(22,32,41,34)(27,38,43,44)(31,36,42,39)(1,2)(3,4)(6,10)(11,12)(13,15,19,29)(14,21,25,23)(16,31,33,42)(17,18,28,20)(22,38,41,44)(24,37,26,35)(27,34,43,32)(30,39,40,36)(5,7,9,8)(6,11,10,12)(13,16,18,32,19,33,20,34)(14,22,24,40,25,41,26,30)(15,27,17,31,29,43,28,42)(21,36,35,38,23,39,37,44)(2,4)(13,17,20,15,19,28,18,29)(14,23,26,35,25,21,24,37)(16,31,34,27,33,42,32,43)(22,39,30,38,41,36,40,44)(5,8,9,7)(6,11,10,12)(13,18,19,20)(14,24,25,26)(15,28,29,17)(16,32,33,34)(21,37,23,35)(22,40,41,30)(27,42,43,31)(36,44,39,38)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.