fig = plt.figure(figsize=(12, 12))
ax = fig.add_subplot(projection='3d')
ax.patch.set_alpha(0)
plt.tick_params(left=False,
                bottom=False,
                labelleft=False,
                labelbottom=False)
ax.scatter(embed[:, 0], embed[:, 1], embed[:, 2],
           s=200, c=data.y, cmap="hsv", vmin=-2, vmax=3)