In the described diagram, the white balls likely represent atoms involved in covalent bonding, and the rods connecting them to the larger red ball may indicate covalent bonds. The green lines running from each white ball to the red ball likely represent some sort of interaction or attraction, possibly indicating dipole interactions if the red ball represents a more electronegative atom or ion.
If we consider the context of chemical bonding, the white balls could be representing nonmetal atoms participating in covalent bonds with each other and with a central atom (the red ball), which could represent a metal atom or a different nonmetal.
In summary, the types of bonds shown in this diagram are likely covalent bonds, and the green lines indicate interactions or attractions between the different atoms depicted.