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