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