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