7432 behaves like an AND gate & 7408 behaves like an OR gate
It looks like your switches are pulling signals to ground.  That means that "on" corresponds to 0 on the input, and "off" corresponds to 1.  Similarly, as pointed out previously, if your LED is going from power to the output, when your LED is on the output is low (0) and when off the output is high (1).

If you draw the truth table with all these inversions, you'll find that if both the inputs and the outputs are inverted, your AND(/NAND) becomes an OR(/NOR) and vice versa.