If any node shown has gender, it's subtle.
I expect Yay has found it convenient to present as either gender, depending on mission and context, so a gender fluid stock body is the most convenient for dealing with organics. In the early strips Yay presents in a feminine-cut suit though taking a masculine role (rule enforcer) amongst women (Corpse Witch, Bubbles, Faye); this is likely a power play as note the language Yay uses is decidedly masculine when addressing the male accountant/Punchbot.
While befriending Roko, Yay presents in stereotypical feminine attire ("Legging buddies."). Interestingly, Yay has presented to Eliot as femme, which is certainly done with forethought as the topic is feelings and emotions, even if the obvious object is Hercules; perhaps a deliberate attempt to set Eliot at ease since Yay knows he discusses with Renee.
What would be really interesting is a meeting with Yay and Beatrice Chatham - what would Yay elect to wear?
I keep wanting to refer to Yay with femme pronouns, but that's not what should happen were Yay a real person or AI. I think it's the waist...