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