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