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