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