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