How to create a distribution plot faceted that contain title in x an y axis GGPLOT

How to create a distribution plot faceted that contain title in x an y
axis GGPLOT

I have data that looks like this
df <-
data.frame(c("Cell1","Cell2","NK-Cell"),c("K","L","S","L","K","S","S","L","K"),abs(log2(abs(rnorm(180)))))
colnames(df) <- c("ctype","tissue","exp")
I'm trying to create a plot that looks like this.