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