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