The Sentence Diagram Generator visually represents the sentence "Jesse and his brother will be staying here." as follows:

                +-------------------+
                |       will        |
                |                   |
                |                   |
                |                   |
                +-------------------+
                          |
                          |
                          |
                +-------------------+
                |       be          |
                |                   |
                |                   |
                |                   |
                +-------------------+
                          |
                          |
                          |
                +-------------------+
                |     staying       |
                +-------------------+
                          |
                          |
                          |
                +-------------------+
                |       here        |
                +-------------------+
                          |
                          |
                          |
                +-------------------+
                | Jesse and his     |
                | brother           |
                +-------------------+

This diagram illustrates the grammatical structure of the sentence, showing the main verb phrase and its components.