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