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