Walk, Deuce (Public Transportation Bus), Uber, Cab, Drive Yourself
No, Life Is Beautiful offers no official transportation to the festival.
More than likely you are either staying in Downtown Vegas or The Strip for Life Is Beautiful. If you are anywhere Downtown you can simply walk to the festival. If you are on the Strip you are about 5 miles north of the festival. To get to Downtown your main options are a bus, cab or Uber. A cab will be $20-$35 depending on where you are on the Strip (closer to $30 if you are on the South Side of the strip by Mandalay Bay or MGM). Uber will be slightly cheaper than this. The Deuce is a public bus that runs up and down the Strip and to Downtown 24/7 and costs just a couple of dollars a ride. It is the cheapest option by far, but has many stops along the way so it is much slower. I personally Uber but if you need to save money go with The Deuce.
$2.25 per ride if you take The Deuce. Uber will be roughly $10-$20 and cabs will be $20-35 depending on where you are staying on The Strip.
No, there is no official parking offered by Life Is Beautiful on site.