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