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