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