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