The ground state electronic configuration of sulfur (16S) is 1s2 2s2 2p6 3s2 3p4 .
Excitation by energy absorption leads to an electron jump from the 3p to the higher energy 3d orbital. So, its electronic configuration becomes 1s2 2s2 2p6 3s2 3p3 3d1.
Upon further energy absorption, one of the 3s electrons also shifts to a 3d (the 3p electrons do not jump further because they are very stable in a half-filled 3p3 state).
So, the excited state electronic configuration of sulfur becomes 1s2 2s2 2p6 3s1 3p3 3d2