This has been a gap in Office 365 and SharePoint Online for quite some time: there was very few way and options to manage OneDrive for Business.
Good news, this gap is going to be filled, maybe not yet with everything you may be looking for but at least an administration console for OneDrive for Business.
If you want to start to take a look, go to https://admin.onedrive.com/ (yes, there is not yet any integration with Office 365 admin portal or SharePoint Online administration center).
From there you will be able to manage the sharing, the synching (caching) options and compliance.
If you already had configured some of these settings (like sharing options or synching) mostly with PowerShell, their value will be set automatically from your previous configuration.
It will clearly makes things easier to manage.
This is really an early first release preview – quite redundant – as I think one important thing is missing: a simple and clear reporting for who has provisioned his OneDrive for Business and the storage consumed. Hopefully this will come