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