If you have to work on election day, November 8, you still have the right to vote. As a registered voter in Kentucky, you have the right to take up to four hours off of work to vote, but you will not be paid for these hours. KRS 118.035. In Kentucky, you should keep proof that you voted for your boss to see, and you should also tell your boss at least one day in advance that you are going to take time off.
To vote, you must go to your own precinct which can be found at https://vrsws.sos.ky.gov/vic/ and have a valid ID such as a driver's license, social security card, or other government issued ID. Voting hours are 6am to 6pm, and you will be given the chance to vote if you are waiting in line by 6pm.
In Kentucky, the election is not just limited to the president, there is also a Senate seat and a House of Representatives seat on the ballot. Some argue that these positions are more important than the presidential position, so these are extremely important people to research as well. Kentucky provides online sample ballots at http://apps.sos.ky.gov/electionballots/ so that you can see who is running for every office and do your research before November 8th. This is what your ballot will look like, but you cannot vote online through this website. There is no way to vote online.
Remember to vote no matter who you are voting for, and have a happy election day!