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