The integration between Toolset and Divi theme makes it easy to add custom content to Divi and display it, on the front-end. You can use Divi Builder with Toolset to design templates for your custom post types and archive pages.
First, make sure that you read the documentation on Toolset and Divi integration. For this integration to work, you need to have the following Toolset plugins installed:
Of course, you also need to have Divi theme.
Depending on your site, you may also need CRED and Access.
When you ask for help, please explain what you are trying to achieve, show us what you are doing and explain what you expect to see.