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