Assuming that the results come from our platform, the particles themselves will contain an ID attached as a field:
Now, that will make sure your particles receive their colour based on the ID. To obtain a band separation, you need to configure the colour mapping, so that the colour space contains a smaller number, by changing “Number of Table Values” in the panel to the right. In my example I chose 8:
Here it is at a later time-step:
Hope this helps and could answer your question.