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