Open the Facebook app
Tap the menu icon
Tap Pages if you are looking for a Page draft
Select the Page you want
Tap Publishing tools or Professional dashboard
Tap Drafts
Open the draft post you want to edit or publish
If you are looking for a personal post draft, open the post composer
Tap Back or close the composer when prompted to save the draft
Reopen the composer to find the saved draft
Check the Drafts section if it is available in your version of Facebook