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)(15,23)(16,28)(17,21)(18,22)(19,26)(20,30)(24,33)(25,35)(27,34)(29,36)(31,41)(32,38)(37,42)(39,43)(40,44) involution — undirected(1,2,4,3)(5,6)(7,10)(8,9)(11,12)(13,15)(14,19)(16,29)(17,26)(18,25)(20,36)(21,23)(22,34)(24,30)(27,32)(28,33)(31,40)(35,38)(37,44)(39,42)(41,43)(6,9)(10,11)(13,16)(14,20)(15,24)(17,30)(18,31)(19,33)(21,28)(22,37)(23,36)(25,39)(26,29)(27,40)(32,42)(34,43)(35,44)(38,41) involution — undirected(5,7,8,12)(6,10,9,11)(15,25)(18,32)(19,34)(22,38)(23,35)(24,39)(26,27)(29,40)(31,42)(33,43)(36,44)(37,41)(1,3,4,2)(14,21)(15,26)(16,30)(22,38)(25,27)(31,42)(33,36)(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.