3D Voronoi Diagram

I have used voronoin() for finding the vortices in a 3D particle distribution.I have used the volume of the simplices for calculating clustering.But the final results were confusing.So I would like to look into the 3D voronoi diagram.How can I visualize the 3D voronoi diagram along with the point particles?Is alphaShape can be used for this purpose?

Thanks