* TSX rises 68.29 points, or 0.54 percent, to 12,753.53 * Eight of 10 main sectors advance * Imperial Oil shares rise after earnings report By John Tilak TORONTO, Feb 1 (Reuters) - Canada's main stock index climbed on Friday, led by energy and materials stocks, which benefited from rising commodity prices after U.S. jobs data pointed to modest economic growth. U.S. employment grew in January and gains in the prior two months were bigger than initially reported, supporting vi