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