If your oscillator frequency is controlled by a voltage, you could use that voltage for the X axis instead of the frequency. In that case the scope can measure and display the two voltages directly, in X/Y mode. (The DS1054Z is not great for X/Y mode though, since it always reserves part of the display for the time trace.)
If you need to measure the frequency and use that in the plot, I don't think the scope can generate such a plot on its own. This would be a typical task for a PC-controlled automated measurement setup: Have the PC control your oscillator and scope, e.g. using LabView, and collect and plot the results on the PC.