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