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