Give me a moment, and I'll draft up some plans you can put to scale
EDIT: okay, so here's the gist of the joint. After observation, there are of course three pieces.
Looks pretty complex, right?
The Yellow Block has No Dados in it.
The Red block has one Dado in it.
The Blue Block has two Dados in it.
You can see them better moved apart in this picture
Now that blue block is the complex one, and right now it just looks like a bunch of lines, so I put it at a better angle so you can see that it is one dado halfway through the piece, just like the Red Block, but it has another dado running perpendicular to the other dado, exact same dimensions, only offset One Half the thickness of whatever the blocks are.
It should be noted that all the dados are the width of the blocks, and they are 1/2 as deep as the width of the blocks. Also, the legs of the table are put at 45 Degree compound miter angles. (45 degrees on the X and Y axis) Same with the top.
When you make all these cuts, you should focus on the joint in the center with the dados, and give yourself some room to figure out the dimensions when you make the angled cuts on the bottom and top.
I did not dimension them because that is for you to do. I cannot dimension a table without knowing the proper scales and any other information about the table. All I did was Digest the joint so you know what to do.