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