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