1. Combine first 7 ingredients in a medium bowl. Cover and chill slaw until ready to serve.
2. Combine 1/2 teaspoon salt and next 3 ingredients in a medium bowl. Combine cornmeal, flour, and paprika in a shallow dish. Dip oysters in buttermilk mixture, and dredge in cornmeal mixture.
3. Heat 1 1/2 teaspoons oil in a large nonstick skillet over medium-high heat. Sauté oysters, in 2 batches, 2 to 3 minutes on each side or until golden brown. Transfer to a plate; cover with foil to keep warm. Repeat with remaining oil and oysters.
4. Fill each roll with 1/2 cup slaw; top evenly with oysters.