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