Steps:
1. Select the "Column Graph" tool from the toolbox. Drag the mouse like drawing a rectangle. A window appears.
2.  Enter the values. Click the Ö sign at the upper right corner; then close the window. the graph is drawn.
3. To change the color select the a bar with "Direct Selection" tool and change its fill and stroke color.
4. Similarly change the color of other bars.
5. Column graph is ready.