Get Schematic Symbol Shielded Cable Pictures. Isn't this a simple matter of creating your own schematic symbol? Usually, shielded cable is shown as a line with a circle around it;
Schematic symbols and pcb footprints for various devices in expresspcb (mostly simple debug board but includes some older large designs).
Shielded cable / shielded wire. A schematic symbol is used to instantiate a module in a schematic design. The power lines, wires, cables, conductors. Apparently tying cable shield to the device usb gnd is one of the deadly usb sins: