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