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