They are both correct. In each case, money is the direct object of save. The money is saved.
In the first example, you is the indirect object. You are the beneficiary of the action. it could be rephrased to read The discount here saves money for you.
In the second example, money is still the direct object, and there is no expressed indirect object. But the beneficiary of the action is implied by the adjective your which modifies money.
The former is likely more common and flows better. The phrase save your money is often used in circumstances when a person is being urged to spend no money.
https://english.stackexchange.com/questions/151786/save-you-money-or-save-your-money