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