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