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