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