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