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