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