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