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