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