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