Instead, you have to connect it to your computer and then open Web Inspector through the desktop Safari program.
Settings Safari Developer Debug Console.
However, it can be activated in just a few short steps.
Chrome 32 for the desktop now has mobile device emulation, which is useful for debugging things via the console, such as touch events that don't necessarily exist on the desktop).
I'm not sure if this will do what you want (you probably want to see some code but Mobile Safari has some dev-ish tools.