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