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