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