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