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