One vertex per element, one color per generator, with an edge from x to x·s.
(2,7)(3,10)(4,14)(5,8)(12,13)(15,16)(17,18,23,19)(20,28,29,32)(21,26,22,25)(24,31,27,30)(1,2,8,14,6,4,5,7)(3,11,10,15,13,9,12,16)(17,19,23,18)(20,28,29,32)(21,25,22,26)(24,31,27,30)(1,3,6,13)(2,9,4,11)(5,12,8,10)(7,15,14,16)(17,20,23,29)(18,24,19,27)(21,31,22,30)(25,32,26,28)(1,4,5,14,6,2,8,7)(3,9,12,15,13,11,10,16)(20,29)(24,27)(28,32)(30,31)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.