Approximately from memory:
Leave M6 at J13 and follow brown signs to Shugborough Hall (you will enter south stafford, beware of traffic cameras, you will turn right just before a garage. Continue to follow signs to Shugborough (involves a number of roundabouts))
Just before Shugborough Hall you will pass a pub on your left, the Barley Mow, after the roundabout take the road on the right (you will see a green area on the right with a sign Cannock Chase). This road winds for a bit, eventually there will no longer be trees on your left and you must make a sharp turn left over a bridge, signed Little Haywood (I think). Follow this road until it meets a cross roads, go straight across. This road will eventually become Coley Lane. Look for the sign for Far Coley B&B. I'm sure some signs will be out.
Best I can do