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