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