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