While a legitimate "free" copy is unlikely to exist legally, the official sheet music is highly affordable and guarantees accuracy. Here is where you should look:
: Offers an official digital version (Schott Music Digital #Q7075) for instant download and printing.
which may allow you to view the score. Otherwise, you can purchase a high-resolution PDF for approximately Sheet Music Plus
: As the original publisher, Schott Music offers the official print edition and e-score under "The Virtuoso Piano Transcription Series".
