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