Admin can allow the vendors to configure the shipping rates zone-wise by enabling the option from here: WCFM Admin Dashboard -> Settings- > Shipment settings -> Shipping by zone.
After this the admin will have to add these zone from Admin panel here: Admin panel -> WooCommerce -> Settings->Shipping -> Shipping zone->Add Shipping Zone.
In the Add Shipping Zone Page. Enter Zone Name, select Zone Regions, and click Add Shipping Method.
In the Shipping method popup select “Store Shipping” from the dropdown and save all changes
Once this is done, then you can allow the vendors to provide the related rates from the front-end for the given shipping zones as all the zones set up by the admin will be visible in the zone list for the vendor.
Additionally, admin can also set shipping class for the vendors and they can set shipping costs for the shipping classes set by the admin per zone.
For setting up the shipping classes, the admin will have to configure it from here: Admin Dashboard -> WooCommerce-> Settings-> Shipping class