Monitor all wireless devices from cabled PC

You say "hub" but it sounds more like you're describing a "router". Can you confirm the model number for this device? The difference between these two terms is very important for what you're trying to do.

If it is a typical wireless router, then no as it is right now you can't monitor everything the S3 is doing because the S3's traffic will go from the router to the Internet, and the router has no reason to send that traffic toward your wired computer.

If you want to capture the traffic from the S3, there are a few things you can do. One is to run wireshark on something that is connecting to your network via Wifi, and monitor all the radio messages on that network (including those of the S3). Another way is to connect to an actual hub that the S3's traffic is passing through, or a switch with "port mirroring" or "SPAN" configured to forward all the S3's traffic out to an interface that you are connected to and running wireshark off of.