  Let X be a del Pezzo surface of degree 1, and let G be the simple Lie group
of type E_8. We construct a locally closed embedding of a universal torsor over
X into the G-orbit of the highest weight vector of the adjoint representation.
This embedding is equivariant with respect to the action of the Neron-Severi
torus T of X identified with a maximal torus of G extended by the group of
scalars. The T-invariant hyperplane sections of the torsor defined by the roots
of G are inverse images of the 240 exceptional curves on X. This extends the
main result of our previous work to del Pezzo surfaces of degree 1.
