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