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