Layer 2 encryption between PC and switch?

Hello,

I am thinking about layer 2 encryption (macsec) between a PC and switch using Cisco anyconnect software. I don't want ISE involved and I don't have an ASA. I simply want the traffic between my switch and PC encrypted to prevent snooping on cat5 cable that I don't have eyes on 24/7. My switch and PC are about 100 feet apart. Is this possible? Anyconnect software seems to have macsec but I don't know how to get a key prompt or anything.

Thanks in advance.