hi i would like to take single journey of cable car then visit the walk of buddha how will i get back to auberge hotel in HK?

For the hotel, do you refer to the Auberge Discovery Bay HK?
If so, after visiting, you can take the Island bus Line 23 to back to Tung Chung Station. Then go to take the Tung Chung Line from Tung Chung Station to reach Sunny Bay Station. Get out of the station from Exit A, you can find the free shuttle buses of your hotel to back to your hotel.