try setting a random layout

app.py

@@ -97,9 +97,9 @@ node_info = pd.DataFrame({
     "gene_name": gene_names,
     "description": description})
 
-network_data = []
+elements = []
 for i in range(len(gene_ids)):
-    network_data.append({
+    elements.append({
         "data": {
             "id": gene_ids[i],
             "label": gene_name if gene_names[i] is not None else gene_ids[i]},
@@ -108,7 +108,7 @@ for i in range(len(gene_ids)):
             "y" : i * 10}})
 for i in range(len(neighbors.index)):
     edge = neighbors.iloc[i]
-    network_data.append({
+    elements.append({
         "data" : {
             "source" : edge["gene_id_1"],
             "target" : edge["gene_id_2"],
@@ -128,7 +128,13 @@ with col3:
 stylesheet = [
     {"selector": "node", "style": {"width": 50, "height": 20, "shape": "rectangle"}},
     {"selector": "edge", "style": {"width": 10}},
+    {"selector": "layout", "style": {"name": "random"}}
 ]
 
 st.title("ToxoCEN Network")
-clicked_elements = st_cytoscapejs(network_data, stylesheet)
+clicked_elements = st_cytoscapejs(
+    elements = elements,
+    stylesheet = stylesheet,
+    width = 1500,
+    height= 1500)
+