You can try setting the backcolor in the CurrentCell in PrepareViewStyleInfo.
private void gridControl1_PrepareViewStyleInfo(object sender, Syncfusion.Windows.Forms.Grid.GridPrepareViewStyleInfoEventArgs e)
{
if((e.RowIndex % 2) == 1)
e.Style.BackColor = Color.LightGoldenrodYellow;
GridCurrentCell cc = this.gridControl1.CurrentCell;
if(cc.RowIndex == e.RowIndex && cc.ColIndex == e.ColIndex)
{
e.Style.BackColor = Color.White;
}
}