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