It actually shows just that, but the person that made it wanted to show you raw numbers to convince you that the vaccine isn’t worth it. The easiest to understand is the number of cases since the end of the graph shows the two groups as being the same in absolute numbers. However, the percent of the unvaccinated adult population is 5.7 to 1 smaller. Because the absolute value is the same, the ratio could be inferred that an unvaccinated person is 5.7 times more likely to be hospitalized. Anyone would be laughed at, though, for making such a conclusion at a snapshot in time with such a limited sample.

My point is that the graph isn’t showing what you think it is.