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