STAR CITIZEN IS NOT EVEN CLOSE TO BEING NEAR ITS FINAL, OPTIMIZED STATE.
Having said that, there's no way an iGPU will be good enough. Even if it technically ends up supporting it say 30FPS it's going to look like crap with all the settings cranked down.
And since you can't add a graphics card to that laptop there's not much you can do really. Some laptops have Thunderbolt to support external GPU's but that's about your only option (which you probably don't have).
*Either way, wait until the game actually goes GOLD and is optimized so we have final BENCHMARKS to go by... my advice is check back in another YEAR (end 2019) because it's going to be a while still.