In this work, we give an upper bound for the diameter of the Cayley graph of the group ${\rm SL}_2({\rm F}_p)$. For this purpose, we introduce Helfgott's product theorem. We consider some special cases for very small and very large generating subsets of the group ${\rm SL}_2({\rm F}_p)$. We define maximal tori and regular semisimple elements, through which we write down the torus dichotomy theorem. We also present the theorem of Larsen-Pink inequalities and take a closer look at the conjugacy classes of the group ${\rm SL}_2({\rm F}_p)$.
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