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