QlikSense is designed to run on 64 bit Systems, with the Server Version you will be able to use QlikSense from you System using your Browser, no mater if 32/64bit OS. This will need a 64bit Server running QlikSense.
There will be no 32 bit installer for Qlik Sense Desktop or Qlik Sense Server. The software itself will not have support for either native 32 bit Windows or 32 bit on 64 bit Windows (called WoW). However, clients accessing Qlik Sense Server can be on a 32 bit OS (Windows or other) as long as they conform with the browser requirements for the client for that version of Sense.