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