As of the synagogue almost only the floor is left, a small model was set up outside the entrance. It shows how the building of the synagogue looked like.
The uppest section of the mosaic was located close to the holiest section of the synagogue. It shows jewish religious symbols with the Torah ark in its center and ritual objects like candelabra and palm branches around.
At the bottom of the mosaic you will see scenes of the sacrifice of Isaac by his father Abraham. This is also common to other synagogue floors.
The two young men shown on the left are part of the story, when Abraham told his men to wait with a donkey for the worshipping (Genesis 22:16-17): "... he went his way to the place which God had commanded him. And on the third day, lifting up his eyes, he saw the place afar off. And he said to his young men: Stay you here with the ass; I and the boy will go with speed as far as yonder, and after we have worshipped, will return to you."
On the right side is a part of the scene of Abraham and Isaac at the place of the altar, with their names in Hebrew (Isaac, Abraham).
In the center is a lamb that replaced Isaac as a sacrifice (Genesis 22: 13): "And Abraham lifted up his eyes, and looked, and behold behind him a ram caught in a thicket by his horns: and Abraham went and took the ram, and offered him up for a burnt offering in the stead of his son".