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