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