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