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