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