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