Because the G7 chord contains four notes, there are three inversions plus the root position. The following three diagrams illustrate the first inversion (3 5 b7 1), the second inversion (5 b7 1 3), and the third inversion (b7 1 3 5) of the G7 chord.
The following example uses all the inversions of the G7 chord. Use the fingerings shown in the diagrams just shown.