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