Write a page(not a post). Title it Sitemap.
You’ll find the code here that you’ll need to paste into your page.

Enter Sitemap as the Page Slug.
Disable Comments and Pings.
Publish.

Go to Dashboard–>Options–>DDSitemapGen.
Enter the same Slug, update.

Add the link to the sitemap via your theme’s menu or sidebar or add a Pages widget.