The organization behind each show is in charge of transportation services so it varies from event to event. The cabdy show each year would pick up right by the Marriott every 30 minutes, but the NACS show only had busses going to the Hilton a few blocks down the road. Check with whatever organization is in charge of the show you are attending for a bus map.
Call the hotel. If not there are plenty of taxis, uber's and buses.
Not sure about that hotel but i know they had several free shuttles from most nearby hotels. We stayed at Holiday Inn and took the shuttle every day.
Thanks! Your answer is awaiting moderation.