If you have a picture I can help you tell where it is because this will vary a lot as they offered many lines of cutlass in that time period.
Power Steering pump reservoir.
The power steering fluid is stored in the power steering reservoir. The power steering pump is driven by a belt. Look for it.
under the pump
P/S fluid reservoir.
It should be connected to the power steering pump which is under the alternator; probably right next to the battery.
Lower left front side of engine.
A person adds power steering fluid under the hood of the car to the power steering fluid reservoir. It is labeled power steering, on a yellow twist cap.
It is a black reservoir to the left of the engine. A small dipstick is attached to the back of the cap to measure the power steering fluid level.
The reservoir for the power steering fluid on a 1994 Toyota 4Runner takes approximately 1/4 a liter. The whole system uses slightly less then two quarts.
It is at the far bottom of the car pretty much in line with the power steering reservoir except a little towards the cab of the car at the far bottom.
In the trunk. The power steering fluid reservoir should instead be filled with Mopar ATF+3 or equivalent meeting the +3 standard.
A haynes manual...