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