One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,8)(4,9)(5,12)(6,7)(10,16)(11,14)(13,15)(17,18)(19,27)(20,25)(21,28)(22,23)(24,29)(26,31)(30,32) involution — undirected(1,2)(3,8)(4,13)(5,10)(6,7)(9,15)(11,14)(12,16)(18,23)(20,30)(24,27)(26,28)(33,34,38,42)(35,40,45,39)(36,37,41,47)(43,48,46,44)(2,7)(3,11)(9,13)(10,12)(17,19,22,29)(18,24,23,27)(20,28,30,26)(21,25,31,32)(33,35,38,45)(34,39,42,40)(36,43,41,46)(37,44,47,48)(1,3,6,11)(2,8,7,14)(4,10,15,12)(5,9,16,13)(17,19)(18,24)(20,26)(21,25)(22,29)(23,27)(28,30)(31,32)(33,35)(34,40)(36,46)(37,44)(38,45)(39,42)(41,43)(47,48)(1,4)(2,9)(3,12)(5,8)(6,15)(7,13)(10,11)(14,16)(17,20,22,30)(18,25,23,32)(19,28,29,26)(21,24,31,27)(33,36)(34,37)(35,43)(38,41)(39,44)(40,48)(42,47)(45,46)(1,5)(2,10)(3,9)(4,14)(6,16)(7,12)(8,15)(11,13)(17,21,22,31)(18,26,23,28)(19,25,29,32)(20,27,30,24)(33,37)(34,41)(35,44)(36,42)(38,47)(39,46)(40,43)(45,48)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.