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