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