Infinity One Manual : Page 7 : The Secret of the First Disk : Map to the Labyrinth of Minos and the Minotaur : The First Labyrinth of Antiquity

The Manual Map provides some helpful hints as to directions. To the right is North.
The Main Entrance to the Cellar of the Labyrinth is at square 1, entering Eastward.
The two darkened squares are stairs to other levels of the Labyrinth. The top square has an arrow going left and the bottom of the two squares has an arrow going right. Two squares below those two squares is a square filled with a question mark. Exit to Infinity Castle is at square 60 - bottom middle left. At the bottom middle right is square 486. Some 12 squares above it is a dark circle. There is an Arena - which may not be accessible - and a room marked with a T above it. There are no guarantees.

Page 7 of the Infinity One Manual : Map to the Labyrinth of Minos and the Minotaur : The First Labyrinth of Antiquity