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