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