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