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