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