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