To dream that you see the graffiti indicates the creative aspects of your personality. To know more about your dream, make sure you pay attention to the picture of the graffiti what was painted there, only then you will be able to interpreter your dream better.
Dream dictionary: iti dream meanings
To dream that you are painting something means that you are exploring the creative aspects of your personality. If you are painting the house, the walls or any other part of the building, it means that you are creating the space that is comfortable to be in. If you or other person is painting the graffiti on the public walls, it shows the aggression and anger issues the painter has.
Can be related to a trip or vacation you have in mind but you have not decided yet the exactly itinerary. Also, this dream may be showing you a challenge you have to face and the need to prepare yourself for it.