Final answer:
The Pink Floyd album with a cover showing a man on fire is 'Wish You Were Here', representing themes of absence.
Step-by-step explanation:
The Pink Floyd album cover that features a man who is literally on fire is from their 1975 album 'Wish You Were Here'. This iconic album art depicts two businessmen shaking hands, with one of them being engulfed in flames. The artwork was created by the design group Hipgnosis and represents the theme of absence, which is a recurring concept throughout the album.
Although the imagery does not directly correlate with the works of Philip Guston, who was known for his unique use of the pink, red, and gray palette, the Pink Floyd album cover remains one of the most recognizable in rock history.