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