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