By googling employee absence calendar, I found this paper form, good for at-a-glance assessment of employee attendance -
http://www.aboutnata.org/assets/2009%20absentee%20calendar.pdf And here is a Microsoft excel template for 2010, I didn't open it but it may help you get started -
http://office.microsoft.com/en-ca/templates/TC103524781033.aspx?pid=CT101172751033