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