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