I wouldn't lie.
At some point, it will come out where you actually live. For example... they could notice that your phone number is not a "local" number... and that may raise suspicion. Sure you could put a mobile only... but employers might not like a mobile only contact.

If you were to put your sister address... then you would have to lie on your Tax File Number Declaration form... which wouldn't match with ATO records. Or you might have to tell them why you are late one day (traffic accident) or something like that. And it will come out. And then you will be viewed as someone who can't be trusted.

It seems like a really small thing... but you just never know.

You could leave your address off all together.. if you think that your address is really a hinderence.
If they ask you at an interview - then you can show that you have travelled that distance before and you have no problem with it. And that you also have intentions of moving into the area too. If you're the right person for the job then 1/2 an hour is really nothing. Gosh.. I've had a staff member for 7 years that takes public transport to work for over an hour each way. And many people in Melbourne travel for more then an hour in car & PT to get to work. I realise it must be different in the area you live in. But you should sell yourself in all the other areas. Show how keen you are for the job, how suitable you are for it. The travelling does not affect your capacity to do the job.

good luck with it.