1) Make a 400x400 document. Now press "D" on your keyboard to reset the foreground and background colors to black and white. Make sure your background is BLACK.
2) Make a NEW LAYER and grab the custom shape tool. Use this Custom Shape I used or experiment with a different one: 
Hold shift to make a perfect shape size. Once done making the shape on the new layer we want to go to Select>Load Selection.
With the shape selected we can now apply Filter>Render>Clouds. You can now deselect the selection. Go to Filter>Sketch>Chrome and use these settings:
3) Apply some color now (CNTRL+U):
Duplicate the layer and set the duplicated layer blending mode to Color Dodge:
Press CNTRL+E to merge the 2 layers together. Right Now you already got a cool looking graphic.
But it can be even more cooler if we added some blur to it to give it more of a abstract feel to it. So go to Filter>Blur>Radial Blur and once again use these settings:
Now your done, here is my final effect:
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