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