I am not familiar with such a tool in Visio. However, there is a Visio forum at:
http://www.visguy.com/vgforum/ that posters may be able to help you.
Additionally, another link that may offer some help is at:
http://www.visguy.com/category/visio...hapes/network/.
UPDATED NOTE:
http://www.visguy.com/2014/11/18/circles-in-circle-1/ May be a starting point if you want to proceed in Visio. This topic addresses the
nonavailability of circular pattern tools within Visio itself.