Create an image showcasing a festive office Diwali party setup. The scene features plain white walls and a cement floor, with one entire wall made of full-length windows allowing natural light to pour in. On the floor, there's a beautifully crafted small rangoli design, vibrant in color. String fairy lights are draped creatively around the space, adding a warm, inviting glow that enhances the celebratory atmosphere. Capture the essence of a fun and cheerful Diwali celebration in an office setting.