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