Every business needs a marketing plan and this should also include a Social Media strategy. You will need to think about what you want to achieve from your Social Media Marketing, list your targets and aim for these. You should start your Social Media Marketing plan by doing a SWOT Analysis.
Strengths - what are your businesses strengths? What are you good at? What can you offer your customers that your competitors cannot? Do you have cost advantages over your competitors? Where are your customers most likely to interact with you?