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