Sorry, No isn't possible the file system is managed by the Windows Host, on the VMware datastore
And isn't possible to see NetApp SnapShot
The only solution you have is to mount a Raw device from your NetApp to your VM, in this case the guest VM manage the file system and can shos the NetApp Snapshot un the VSS to restaore file
If you need to restore some files by admin, you can install NetApp Snapcenter PlugIn for VMware and with this tools your are able to restore from VMware to your Windows VM, with the guest file retrore option