Ahh - a very first post - maiden post ya might say. Certianly deservs a prompt response. Welcome aboard!:D
Isn't Cayuta the smaller lake to the east of Seneca. I took a road trip there last summer and kayaked around the northern shallow, I think there were 12 boat trailers in the lot that day.
I been staying closer to home on the PA border and starting to find crappie on live minnow in the 15 to 20 feet deep range. Water temp read low 50's late Sunday but the fish coming up from down there were much colder than that!
Find some structure around that depth and drop shot a live one down there and hope for the best. If I remember correctly that lake is so old that there won't be any trees or wood of any sort so I suppose my first choice would be the drop offs along the western shore.
Good Luck!