It's not clear to me what you mean but "Footer". Are you talking about printing the grid? Or are you talking about Summaries? It sounds like you mean Summaries. If that's the case, then you could try something like this:

 
        private void ultraGrid1_InitializeLayout(object sender, Infragistics.Win.UltraWinGrid.InitializeLayoutEventArgs e)
        {
            e.Layout.Bands[0].Override.SummaryFooterCaptionVisible = DefaultableBoolean.False;
            e.Layout.Bands[0].Override.SummaryFooterAppearance.BorderAlpha = Alpha.Transparent;
            e.Layout.Bands[0].Override.SummaryFooterAppearance.BackColor = Color.Red;

            UltraGridColumn myColumn = e.Layout.Bands[0].Columns["Int32 1"];
            SummarySettings mySummary = e.Layout.Bands[0].Summaries.Add("My Summary", SummaryType.Sum, myColumn);
            mySummary.Appearance.BorderAlpha = Alpha.Transparent;

            e.Layout.Override.BorderStyleCell = UIElementBorderStyle.None;
            e.Layout.Override.BorderStyleRow = UIElementBorderStyle.None;

            e.Layout.Override.CellClickAction = CellClickAction.RowSelect;
            e.Layout.Override.HeaderClickAction = HeaderClickAction.SortMulti;
        }