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