God only knows if Cybertron is in there or not.
Cybertron's original location is unknown, although Starscream and Skyfire seemingly flew from there to Earth under their own power millions of years ago. In the 1980s, Omega Supreme and other Transformers often flew between the worlds without the aid of large ships or space bridges. This strongly implies that Cybertron is located in the Milky Way, or at the very least in one of its small satellite galaxies.
As in the Marvel comics, Cybertron orbits Alpha Centuari.
Cybertron is located in the Milky Way galaxy, somewhere in the direction of the constellation Scorpius.
Transformers (2007 movie)Edit
According to Bumblebee, he arrived in the Milky Way galaxy shortly before arriving on Earth, thus implying that Cybertron is located outside the Milky Way galaxy.