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