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