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