Administrator Activity log

I am a little concerned following a short discussion with our Corporate security manager. I am an IT manager with a local company, and have administrator rights on our file and print server. To this effect, I have access to all folders and files on the server. It transpires, that although I can check up on each individuals activity and log, no one can check up on me. So, if sensistive information is leaked, I would be a prime suspect since I have access to all files. Is there a software available that can track my activity while logged onto the server?