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