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