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