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