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