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