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