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