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