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