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