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