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