Click on your company name in the top right and select 'Settings.'
Under the 'Company' tab, you will see where you can plug in your Facebook URL:
Alternatively, if you want to share your ad on your Company's Facebook page, click on your job from your main WizeHire dashboard. At the top, click on 'Job Settings' and then click 'Invite Applicants.'
Just click on the blue 'Facebook icon.' You'll be directed to Facebook to share your job ad.