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