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