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