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