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