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