The Sentence Diagram Generator visually represents the sentence "Despite having a sore throat, she sang in the choir." as follows:

          +-------------------------+
          |        Despite          |
          |        +----------------+
          |        |   having       |
          |        |   +------------+
          |        |   |  a sore    |
          |        |   |  +---------+
          |        |   |  | throat   |
          |        |   |  +---------+
          |        |   +------------+
          +--------+-----------------+
                   |
                   +------------------+
                   |        she       |
                   |        +---------+
                   |        |  sang   |
                   |        |  +------+
                   |        |  | in   |
                   |        |  | +----+
                   |        |  | | the |
                   |        |  | | +----+
                   |        |  | | | choir |
                   |        |  | | +-------+
                   |        |  +------------+
                   |        +----------------+
                   +--------------------------+

This diagram illustrates the grammatical structure, showing the relationship between the clauses and the components of the sentence.