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