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