One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,7)(3,9,11,16)(4,13,10,8)(6,14,15,12)(17,18)(19,21)(20,22)(23,27)(24,28)(25,29)(26,32)(30,31)(1,3,10,14,5,11,4,12)(2,6,13,16,7,15,8,9)(17,19,23,26,24,30,22,29)(18,25,20,31,28,32,27,21)(2,7)(3,11)(8,13)(12,14)(17,20,22,18,24,27,23,28)(19,25,29,21,30,32,26,31)(1,3,10,14,5,11,4,12)(2,6,13,16,7,15,8,9)(17,21,23,25,24,31,22,32)(18,26,20,30,28,29,27,19)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.