I found a documentary online about the S-130 which is the last surviving S-Boat or E-Boat from the war. The ship is in Southhampton, England and this documentary tells its story. The S-130 participated in attacks during the D-Day invasion and is the same type of ship that sunk the Partridge, although there is no way of telling at this point if it was this exact ship.
The movie is in several parts listed in the center box. (Link)