Social liberalism may be popular among the well educated, but economic liberalism is not.
Definitely some social issues like gay rights have a strong relationship with educational attainment. Most state's exit polls on gay marriage bans show a direct, linear relationship between the two variables.
Part of the issue with economic liberalism is that the well-educated tend to also be high-income. I would wager that even economic liberalism is more popular (though not as dramatically as social liberalism), among the highly educated once income is controlled for.