ADC is the least affected 'role' by the new items.
Bruisers have alot of new, or altered tanky or 'ad caster' items
APs have a few tweaked items (like the mask upgrade which is now considered core on most APs)
Supports were given lots of new stuff to help support, or help ease the gold burden.
Jungles have alot more items.
And AD casters have gotten much love and flexibility with new items.
ADC only have a few new or tweaked things. Spell spammers like corki and EZ now have a reason to build manamune. That mutli target bow thinger works great on long range champs like Cait (longbow and black cleaver instead of Last Whisper. Enjoy the results). But for the most part most ADC still play the same. Build some damage, build some atk and move speed to kite and chase better, get an Infin Edge, and build some armor pen. Kill anything in your range.
Graves is a bit scrappier than some other adc, so I could see him building some of the ad caster items if you wanted to be creative, but for the most part he plays and builds the same.