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