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