Is this possible to keep her at home and ask a friend or relative to look after occasionally? This is the kind of solution I prefer but understand may not be feasible.
Do you have CAM at home? One of my friend set one at the door entrance. This may act as a preventing measure for her to bring friends in for party.
Besides, there are 3 labour holidays during Chinese New Year + the previous sunday, there should be altogether 4 days. If this period overlap with your vacation, you can just let her stay at home as majority of the time she is out for holiday like what it would be when you are in town. You can set the return time for her and ask your friend or relative to call and check if you are not comfortable. But I would not as there is no actual use for me except getting angry if she does not follow.
I arranged leave for her if possible. If not, I will let my maid stay in my house at night and asked her to go to my mother in law house at day time (e.g. from 8am to 9pm). I told her she needs not do household works at my mother in law house but she needs to go there as there is nobody at home and she can eat there. Besides, I will inform the security gurad of my building that I will be out of town and don't let my maid bring any strangers to my house.