SNP-gene network

Question

[phoenix.sum13]

Hi everyone, I want to build a network like this using Cystoscope. I didn't understand how SNPs are integrated into this network. What information do I need for that? All I have right now list of genes containing SNPs and SNP count per gene. Here's the link to the article: https://pubmed.ncbi.nlm.nih.gov/29617380/