The plugin doesn't integrate into Divi Builder at the moment. There are plans to add this in the feature, but that can still take a while.
However, there are some alternative approaches you can use for now:
- Enable the 'Classic Editor' on the Divi Theme Options menu (Divi Theme Options -> Builder -> Advanced)
This will show the classic editor with the plugin buttons:
- Use the Shortcode Builder page to generate a raw shortcode and copy->paste the code generated by the 'EMBED' button into a TEXT block of the Divi Builder