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