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