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