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