Sprinters Physique? More weights or more sprinting?

what is the best way to achieve a sprinters physique. I currently lift M,W,F and do sprints on the off days. Monday chest and shoulders, Wednesday Back and Friday Legs. Should I be eating at maintenance or under to lose body fat. I am 5'10" male 25, 160 13% body fat. How can I get that lean muscular look. Thanks