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