Landing Page on ADFS 3.0

We use ADFS 3.0 (2012 R2) for Office 365. The user goes to Outlook.Office365.com, enters a username, then lands on our STS site, enters password matching the username, then gets bounced back to Outlook.Office365.com.

How do I skip the first step? How do I present the ADFS login page and then send the user to Office 365?

Thanks,
Paul