Simple..
1. Open the WP Socializer admin page.
2. Go to the “Placement” tab.
3. Go to the Template 1 or template 2 (it will be mostly template 1)
4. In the text box, you will see a text “float:left“.
5. Replace that with float:left;position: fixed;top: 25%;margin-left: -70px;.
6. That’s all. Save the settings.