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