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