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