If you create the log in an Excel or MS Word table, you can group together your items by Area in the first column of that table. Then I like to sort them in such a way that the person performing the check is led to each area in a linear path from their starting point. (e.g. think of the easiest starting point to start this audit, then list each Area in order you would walk to it from that starting point. I've gotten compliments from auditors verifying my G&BP inventory doing this.
Here's an example from one of my plants I work with now. Second column is the name of the rooms, audit starts them in the High Care Veggie Cut and they have to find those items in the first column. Then the checklist leads them to High Care Veggie Pack, Fruit Storage, Low Care Fruit, High Care Fruit, etc.
I'll add on to say it makes the auditor's life easier if the items themselves are linear on the list in the room as well. Enter the area and pick the first G&BP item to your immediate left, then list the items in order as you rotate from left to right. This helps people completing your checklist simply work down the list without having to hunt and search as much for the items.