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