Your layout is poor, there are 0v line running allover the place.
You need to consider how to simplify the tracks and also consider the physical size of the components, not just the electrical schematic. You have some electrolytic capacitors with a 0.1" wire spacing, are you sure that is correct.
Have a look at my layout, it is a bit rough but may give you some ideas.
You can make the 0v and +Vs tracks a lot wider, this lowers the impedance and helps to make a stable amplifier.
I have streached the cole spcing on some of your decoupling capacitors, this may or may not be appropriate, depends on what you are physically using.
JimB