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