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