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