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