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