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