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