Do a network graph visualization such as in for example Cheops-NG.
http://cheops-ng.sourceforge.net/screenshots.php
It should show:
* Distance (hops) between hosts (and maybe also wireless AP's)
* Who are communicating with each other
* OS's (as pictures)
* IP addresses of hosts
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Russ McRee has a god review of some traffic visualization tools at: http://holisticinfosec.org/toolsmith/docs/june2008.pdf