What process do you want to audit? If for instance, it is Purchasing, you can create a list of questions related to that process. Section 8.4 would be very relevant in this case.
For this process you can ask questions such as:
>Do you have a supplier monitoring procedure in place?
>Are all the criteria specified in 8.4.2.4 monitored?
>Are suppliers at least ISO9001 certified?
>Do you have a supplier selection process in place and does it list all the criteria required by clause 8.4.1.2?
As others have said, there is no one size fits all and something could slip past, but at least with a proper internal audit you manage to detect some non-conformities. In our case they helped us in avoiding major NCRs.