Saroni was a pupil of the Accademia Albertina in Turin.
An exponent of the so-called "naturalistic informal", he exhibited at the Venice Biennale in 1956, 1958 and 1962. Again in 1956 and 1958 he won purchase prizes at the fourth and sixth edition of the Spoleto Prize.
In 1963 a work by him was exhibited at the Contemporary Italian Paintings exhibition, set up in some Australian cities.
In the same year he participated in the international exhibition of the New Figuration in Florence; he exhibited at the Mythologies of our time exhibition, in 1965, in Arezzo.
A teacher at the Liceo Artistico, he then obtained the chair of painting at the Accademia Albertina, of which he became director promoting, among other things, the reopening of the Pinacoteca Albertina.