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