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