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