New starter with InDesign.
I can't seem to find a way to associate a graphic with a paragraph style. I know about anchoring objects on a per para basis (below) but i'd like it working at at the para style level as i haven't got time to mess round adding the same graphic to each note style.
Only for a monochrome graphic, I'm afraid (but you never know what forum regular Obi-wan will come up with, so don't give up).
For the monochrome I would create a single glyph font using IndyFont (see Adobe Community: [Ann] IndyFont Demo: make your own (1 character) font) -- make it the bullet glyph -- and create a character style to assign this font, then assign the character style to the bullet in a bulleted list.