As far as I know, we have never seen or heard any more of her story on screen besides the small amount of exposition we get in that episode. She was awoken due to construction in the London Underground, the Doctor stopped her from rampaging through London, and she became a detective-like character working with Scotland yard and "ate" Jack the Ripper.
The companion book The Brilliant Book 2012 has more information about her exploits, depending on how strict your interpretation of Doctor Who canon is. Even those stories, though, don't tell us much about her first meeting with the Doctor.
OOU: There was apparently interest in making a spin-off with her and her human companion, which is why they were given such a seemingly-involved back story on their first appearance, but it probably won't happen any time soon.