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