Here is how to setup Sutori in Sakai as an admin. In a few minutes, your teachers will be able to access Sutori within Sakai Environment:

Click Administration Workspace
Click External Tools
Click Tools Available in System
Click Add External Tool to System
Enter a Tool Title (e.g: “Sutori”)
Enter a Button Text (e.g: “Sutori”)
Enter the Launch URL: https://www.sutori.com/lti/launch
Enter the Launch Key/Secret (provided by Sutori)
Check appropriate privacy settings for your institution
Click Save

If you're an instructor looking to set Sutori up in Sakai, click here.