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