Create a custom content box with Genesis Framework.

functions.php

<?php 
//* no not include php tags

add_action( 'genesis_after_entry', 'sharedaddy_box_genesis_after_entry', 5 );
/**
 * Callback for Genesis Framework 'genesis_after_entry' action.
 * 
 * Create a custom box for sharedaddy links.  
 * 
 * Note: Set add_action() priority to accommodate your theme.
 * http://codex.wordpress.org/Function_Reference/add_action
 * 
 * @since 0.2
 * @author Ryan Meier <rfmeier@gmail.com>
 * 
 * @global $post The current post object within the loop.
 * @return none Exit the function.
 */
function sharedaddy_box_genesis_after_entry() {
    
    global $post;
    
    //* if sharing_display() does not exist, return
    if ( ! function_exists( 'sharing_display' ) ) {
        return;
    }
    
    //* get the sharedaddy links html
    $sharedaddy_links = sharing_display();
    
    //* if sharing_display() does not return anything, return
    if ( empty( $sharedaddy_links ) ) {
        return;
    }
    
    //* add a filter for future use...
    $title = apply_filters( 'sharedaddy_box_title', __( "Like what you're reading?  Share it." ), $post );
    
    //* create a template for the sharedaddy box content
    $template = '<div class="sharedaddy-box"><h3 class="sharedaddy-box-title">%s</h3>%s</div>';
    
    //* display the sharedaddy links within it's own box
    $content = sprintf( $template, esc_html( $title ), $sharedaddy_links );
    
    //* apply a filter for future adjustments
    echo apply_filters( 'sharedaddy_box_content', $content, $template, $title, $sharedaddy_links );
    
}