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