I attached the structure of a Cover Letter you could use for your application. It is a golden standard, I suggest using it.
If you want more space in your CL, make sure you have the right and desired content inside:
- Introduction - which position you apply for and who you use as a referral
- Industry motivation - 3 reasons, why you want to join management consuting industry, referring to your personal exoerience, where possible
- Company motivation - 3 reasons, why you want to be a part of this company: insider and public information about the culture and values, referring to your personal exerience
- Track record - share your professonal, educatonal and private experience
(!) Do not forget to polish it in terms of grammar. Show your new CL to friends and ask for feedback. It would be great if you can show it to a consultant.
Link to the similar answer:
All the best,