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)(17,18,21,28,22,27,39,26)(19,29,33,46,32,23,31,42)(20,34,38,44,37,25,36,24)(30,41,47,40,35,45,48,43)(1,3)(2,6)(4,7)(5,8)(9,10)(11,15)(12,14)(13,16)(17,19,22,32)(18,23,27,29)(20,35,37,30)(21,33,39,31)(24,43,44,40)(25,45,34,41)(26,46,28,42)(36,47,38,48)(9,11)(10,13)(12,16)(14,15)(17,20,22,37)(18,24,27,44)(19,30,32,35)(21,36,39,38)(23,40,29,43)(25,26,34,28)(31,47,33,48)(41,46,45,42)(1,2,5,4)(3,7,8,6)(11,16)(13,15)(17,20)(18,25)(19,30)(21,38)(22,37)(23,41)(24,28)(26,44)(27,34)(29,45)(31,48)(32,35)(33,47)(36,39)(40,42)(43,46)(1,4,5,2)(3,7,8,6)(10,14)(13,15)(17,21,22,39)(18,26,27,28)(19,31,32,33)(20,36,37,38)(23,42,29,46)(24,34,44,25)(30,47,35,48)(40,41,43,45)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.