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