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