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