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