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