The https://bioconductor.org/about/logo/ page provides textual links to the different variants of the Bioconductor logo groups by image format.
Suggestion
I'd like to suggest presenting them with previews to avoid trial-and-error viewing. I'd also like to suggest grouping them per color type instead of per file format, e.g.
CMYK

- Download: [SVG], [PNG], [JPG], [EPS]
RGB

- Download: [SVG], [PNG], [JPG], [EPS]
Spot

- Download: [SVG], [PNG], [JPG], [EPS]
Grey scale

- Download: [SVG], [PNG], [JPG], [EPS]