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