You can but it is very difficult to be successful in the same year if nothing in your experience will significantly change, for instance you have some vacation schemes on your CV or significant work experience. I personally would wait for the next application cycle, especially if it is a firm you are keen to apply to.
Additionally, you could email them and ask them if you can reapply and how will you be assesses if nothing in your application changes, but I am pretty sure they will say the same things. Last year I got rejected from them after the video interview stage too and I did ask this question and they encouraged me to apply next year and that I probably would have not been successful at the direct training contract stage.