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